package/base-files/files/etc/init.d/led

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2008 OpenWrt.org
   3
   4 START=96
   5
   6 extra_command "turnon" "Put the LEDs into their default state"
   7 extra_command "turnoff" "Turn all LEDs off"
   8 extra_command "blink" "Blink all LEDs"
   9
  10 led_color_set() {
  11         local cfg="$1"
  12         local sysfs="$2"
  13
  14         local max_b
  15         local colors
  16         local color
  17         local multi_intensity
  18         local value
  19         local write
  20
  21         [ -e /sys/class/leds/${sysfs}/multi_intensity ] || return
  22         [ -e /sys/class/leds/${sysfs}/multi_index ] || return
  23
  24         max_b="$(cat /sys/class/leds/${sysfs}/max_brightness)"
  25         colors="$(cat /sys/class/leds/${sysfs}/multi_index | tr " " "\n")"
  26         multi_intensity=""
  27         for color in $colors; do
  28                 config_get value $1 "color_${color}" "0"
  29                 [ "$value" -gt 0 ] && write=1
  30                 [ "$value" -gt "$max_b" ] && value="$max_b"
  31                 multi_intensity="${multi_intensity}${value} "
  32         done
  33
  34         # Check if any color is configured
  35         [ "$write" = 1 ] || return
  36         # Remove last whitespace
  37         multi_intensity="${multi_intensity:0:-1}"
  38
  39         echo "setting '${name}' led color to '${multi_intensity}'"
  40         echo "${multi_intensity}" > /sys/class/leds/${sysfs}/multi_intensity
  41 }
  42
  43 load_led() {
  44         local name
  45         local sysfs
  46         local trigger
  47         local dev
  48         local ports
  49         local mode
  50         local default
  51         local delayon
  52         local delayoff
  53         local interval
  54         local brightness
  55
  56         config_get sysfs $1 sysfs
  57         config_get name $1 name "$sysfs"
  58         config_get trigger $1 trigger "none"
  59         config_get dev $1 dev
  60         config_get ports $1 port
  61         config_get mode $1 mode
  62         config_get_bool default $1 default "0"
  63         config_get delayon $1 delayon
  64         config_get delayoff $1 delayoff
  65         config_get interval $1 interval "50"
  66         config_get port_state $1 port_state
  67         config_get delay $1 delay "150"
  68         config_get message $1 message ""
  69         config_get gpio $1 gpio "0"
  70         config_get_bool inverted $1 inverted "0"
  71         config_get brightness $1 brightness
  72
  73         [ "$2" ] && [ "$sysfs" != "$2" ] && return
  74
  75         # execute application led trigger
  76         [ -f "/usr/libexec/led-trigger/${trigger}" ] && {
  77                 . "/usr/libexec/led-trigger/${trigger}"
  78                 return 0
  79         }
  80
  81         [ "$trigger" = "usbdev" ] && {
  82                 # Backward compatibility: translate to the new trigger
  83                 trigger="usbport"
  84                 # Translate port of root hub, e.g. 4-1 -> usb4-port1
  85                 ports=$(echo "$dev" | sed -n 's/^\([0-9]*\)-\([0-9]*\)$/usb\1-port\2/p')
  86                 # Translate port of extra hub, e.g. 2-2.4 -> 2-2-port4
  87                 [ -z "$ports" ] && ports=$(echo "$dev" | sed -n 's/\./-port/p')
  88         }
  89
  90         [ -e /sys/class/leds/${sysfs}/brightness ] && {
  91                 echo "setting up led ${name}"
  92
  93                 printf "%s %s %d" \
  94                         "$sysfs" \
  95                         "$(sed -ne 's/^.*\[\(.*\)\].*$/\1/p' /sys/class/leds/${sysfs}/trigger)" \
  96                         "$(cat /sys/class/leds/${sysfs}/brightness)" \
  97                                 >> /var/run/led.state
  98                 # Save default color if supported
  99                 [ -e /sys/class/leds/${sysfs}/multi_intensity ] && {
 100                         printf " %s" \
 101                                 "$(sed 's/\ /:/g' /sys/class/leds/${sysfs}/multi_intensity)" \
 102                                 >> /var/run/led.state
 103                 }
 104                 printf "\n" >> /var/run/led.state
 105
 106                 [ "$default" = 0 ] &&
 107                         echo 0 >/sys/class/leds/${sysfs}/brightness
 108
 109                 [ "$default" = 1 ] && {
 110                         [ -z "$brightness" ] && brightness="$(cat /sys/class/leds/${sysfs}/max_brightness)"
 111                         echo "$brightness" > /sys/class/leds/${sysfs}/brightness
 112                 }
 113
 114                 led_color_set "$1" "$sysfs"
 115
 116                 echo $trigger > /sys/class/leds/${sysfs}/trigger 2> /dev/null
 117                 ret="$?"
 118                 [ $ret = 0 ] || {
 119                         echo >&2 "Skipping trigger '$trigger' for led '$name' due to missing kernel module"
 120                         return 1
 121                 }
 122                 case "$trigger" in
 123                 "heartbeat")
 124                         echo "${inverted}" > "/sys/class/leds/${sysfs}/invert"
 125                         ;;
 126
 127                 "netdev")
 128                         [ -n "$dev" ] && {
 129                                 echo $dev > /sys/class/leds/${sysfs}/device_name
 130                                 for m in $mode; do
 131                                         [ -e "/sys/class/leds/${sysfs}/$m" ] && \
 132                                                 echo 1 > /sys/class/leds/${sysfs}/$m
 133                                 done
 134                                 echo $interval > /sys/class/leds/${sysfs}/interval 2>/dev/null
 135                         }
 136                         ;;
 137
 138                 "timer"|"oneshot")
 139                         [ -n "$delayon" ] && \
 140                                 echo $delayon > /sys/class/leds/${sysfs}/delay_on
 141                         [ -n "$delayoff" ] && \
 142                                 echo $delayoff > /sys/class/leds/${sysfs}/delay_off
 143                         ;;
 144
 145                 "usbport")
 146                         local p
 147
 148                         for p in $ports; do
 149                                 echo 1 > /sys/class/leds/${sysfs}/ports/$p
 150                         done
 151                         ;;
 152
 153                 "port_state")
 154                         [ -n "$port_state" ] && \
 155                                 echo $port_state > /sys/class/leds/${sysfs}/port_state
 156                         ;;
 157
 158                 "gpio")
 159                         echo $gpio > /sys/class/leds/${sysfs}/gpio
 160                         echo $inverted > /sys/class/leds/${sysfs}/inverted
 161                         ;;
 162
 163                 switch[0-9]*)
 164                         local port_mask speed_mask
 165
 166                         config_get port_mask $1 port_mask
 167                         [ -n "$port_mask" ] && \
 168                                 echo $port_mask > /sys/class/leds/${sysfs}/port_mask
 169                         config_get speed_mask $1 speed_mask
 170                         [ -n "$speed_mask" ] && \
 171                                 echo $speed_mask > /sys/class/leds/${sysfs}/speed_mask
 172                         [ -n "$mode" ] && \
 173                                 echo "$mode" > /sys/class/leds/${sysfs}/mode
 174                         ;;
 175                 esac
 176         }
 177 }
 178
 179 turnoff() {
 180         for led in `ls /sys/class/leds/`; do
 181                 echo 0 > /sys/class/leds/$led/brightness
 182         done
 183 }
 184
 185 turnon() {
 186         turnoff
 187         . /etc/diag.sh
 188         set_state done
 189         start
 190 }
 191
 192 blink() {
 193         for led in `ls /sys/class/leds/`; do
 194                 echo 0 > /sys/class/leds/$led/brightness
 195                 echo timer > /sys/class/leds/$led/trigger
 196         done
 197 }
 198
 199 start() {
 200         [ "$(uci -q get system.@system[-1].leds_off)" = '1' ] && {
 201                 turnoff
 202                 exit 0
 203         }
 204         [ -e /sys/class/leds/ ] && {
 205                 [ -s /var/run/led.state ] && {
 206                         local led trigger brightness color
 207                         while read led trigger brightness color; do
 208                                 [ "$1" ] && [ "$1" != "$led" ] && continue
 209                                 [ -e "/sys/class/leds/$led/trigger" ] && \
 210                                         echo "$trigger" > "/sys/class/leds/$led/trigger"
 211
 212                                 [ -e "/sys/class/leds/$led/brightness" ] && \
 213                                         echo "$brightness" > "/sys/class/leds/$led/brightness"
 214
 215                                 [ -e "/sys/class/leds/$led/multi_intensity" ] && \
 216                                         echo "$color" | sed 's/:/\ /g' > \
 217                                                 "/sys/class/leds/$led/multi_intensity"
 218                         done < /var/run/led.state
 219                         if [ "$1" ]; then
 220                                 grep -v "^$1 " /var/run/led.state > /var/run/led.state.new
 221                                 mv /var/run/led.state.new /var/run/led.state
 222                         else
 223                                 rm /var/run/led.state
 224                         fi
 225                 }
 226
 227                 config_load system
 228                 config_foreach load_led led "$1"
 229         }
 230 }